Home / 89,722.46-123,816.38-49,435.29

Finding the Fourth Proportional to 89,722.46, 123,816.38 and 49,435.29

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Solution

The fourth proportional to 89,722.46, 123,816.38 and 49,435.29 is: 68,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,722.46 : 123,816.38 = 49,435.29 : x
  2. Step 2: Convert to fraction form
    89,722.46/123,816.38 = 49,435.29/x
  3. Step 3: Cross multiply
    89,722.46x = 123,816.38 × 49,435.29
  4. Step 4: Simplify right side
    89,722.46x = 6,120,898,032.97
  5. Step 5: Solve for x
    x = 6,120,898,032.97/89,722.46
  6. Step 6: Final answer
    x = 68,220.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.